
Thunder Basin National Grassland dominates this portion of Weston County, where a complex network of ephemeral drainages carves through the high plains landscape. The map reveals the intricate watershed of the Cheyenne River basin, including Sheep Canyon Cr and the multiple branches of Mush Cr. This terrain is characterized by its wide-open ranching character, where few maintained roads like Upton Fairview Rd and Oil City Rd provide access to interior sections. Small geographic markers such as Mud Springs denote the rare presence of reliable water in this arid environment. The map provides a detailed view of the sectional boundaries and township lines, including t45n r65w and t46n r66w, which define the cadastral grid of the Wyoming prairie.
17 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1918 · Moorcroft
USGS Topo · 1:125,000
1954 · Gillette
USGS Topo · 1:250,000
1955 · Newcastle
USGS Topo · 1:250,000
1955 · Gillette
USGS Topo · 1:250,000
1957 · Upton
USGS Topo · 1:62,500
1958 · Gillette
USGS Topo · 1:250,000
1958 · Newcastle
USGS Topo · 1:250,000
1962 · Gillette
USGS Topo · 1:250,000
1979 · Newcastle
USGS Topo · 1:100,000
1979 · Sundance
USGS Topo · 1:100,000